so here is my 2 cents,
I am using the same pressure transducers 2 ways , in fermenter’s to calculate co2 pressure, and in my kettles to calculate volume. The esp8266 can not take over 3.3v. however the ADS1115 is not sending voltage to the esp3266 it is sending a digital number. There is no need to use a stepdown in voltage to utilize the 16 bit Analog to Digital converter. I do not know how to code much for arduino ide, so I use Tasmota.
In conjunction with node red. I can utilize the digital number to calculate psi, and then for the vessels needing volume I use the formulas for Water column height. x surface area x .004329(that’s 1 cubic inch of water) and that gives me my volume.
hope this helps some of you since this is an old post. cheers,
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